One of a series of lassie dogs named Sport.

The caption on the back of this photo is amazingly specific.

July 31st Sunday Aug 1st 1949  "Rex"  6 P.M.

I like the composition.  I like that the dog is not looking at the camera.  I like that the depth of field seems to be about 4" and sort of makes the dog's ruff pop.

That's the Ottawa river in the background.  That may be one of the cars in the photo of two cars that I posted here earlier.